Author: Renee Lewis
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Sunsets on Mars Turn Blue Near the Sun
Mars is red, but its sunsets can glow blue near the Sun. NASA rover images show how fine dust creates the counterintuitive color pattern.
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Some Moonquakes Can Keep Shaking for Hours
Apollo seismometers revealed four kinds of lunar shaking. Some moonquakes can last for hours, and NASA is preparing new instruments to listen again.
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Mercury Has Water Ice in Craters That Never See the Sun
Mercury is closest to the Sun, but permanently shadowed craters near its poles are cold enough to preserve water ice. NASA’s MESSENGER mission helped reveal why.
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A Bacterium So Big You Can See It Without a Microscope
A single bacterium in Caribbean mangroves can grow to about a centimeter long, and some reach even farther. Scientists found its cell structure just as surprising.
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Venus Flytraps Count Electrical Signals Before Digesting Prey
Venus flytraps use electrical signals from trigger hairs to snap shut, then respond to further signals before investing in digestion. The surprising part: one touch can…
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A Fluffy Cloud Can Hold a Million Pounds of Water. Seriously.
A representative cumulus cloud can contain roughly 1.1 million pounds of water. Here is the USGS math and why the droplets do not fall at once.
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The ‘Immortal’ Jellyfish Can Reverse Its Life Cycle and Start Over
Turritopsis dohrnii can reverse from an adult jellyfish into an earlier polyp stage and begin its life cycle again.